Manchester City have taken the unprecedented step of including a “Manchester United tax” in rising star Brahim Diaz’s £22 million transfer to Real Madrid.
Real will pay an initial £15.5m for Diaz with a further £6.5m payable in add-ons depending on the Spain Under-21 attacking midfielder’s success with the European champions.
But City have insisted on a special United clause that they hope will protect themselves financially should their bitter local rivals try to buy Diaz from Real in the future.
Whereas City will be entitled to 15 per cent of any sell on fee for Diaz, that figure will jump to 40 per cent if the 19-year-old left Real for Old Trafford. It is thought to be the first time City have done anything of this nature.
The Premier League champions believe the deal represents excellent value for a teenager with just six months left on his contract and who has still to make a league start for the club.